My mother in law has been allowing my sis in law and her husband to live in her home for about 7-10 years now my mother in law was living some where else. Well now my mother in law is very ill and needs to sell the house so she can go into a nursing home. She recently added on to the house and was living there until my bro in law was very mean to her. They were suppose to pay rent but never have. He now says the house is his, she needs help badly so she can get the care she needs. They refuse to move out. Help her please! Thank you in advance